On 07/12/2017 08:51 AM, Tomi Sarvela wrote: > Hello there, > > I've been running Intel GFX CI testing for linux DRM-Tip i915 driver, > and couple of weeks ago we took linux-next for a ride to see what kind > of integration problems there might pop up when pulling 4.13-rc1. > Latest results can be seen at > > https://intel-gfx-ci.01.org/CI/next-issues.html > https://intel-gfx-ci.01.org/CI/next-all.html > > The purple blocks are hangs, starting from 20170628 (20170627 was > untestable due to locking changes which were reverted). Traces were > pointing to ext4 but bisecting between good 20170626 and bad 20170628 > pointed to: > > commit 5c279bd9e40624f4ab6e688671026d6005b066fa > Date: Fri Jun 16 10:27:55 2017 +0200 > > scsi: default to scsi-mq > > Reproduction is 100% or close to it when running two i-g-t tests as a > testlist. I'm assuming that it creates the correct amount or pattern > of actions to the device. The testlist consists of the following > lines: > > igt@gem_exec_gttfill@basic > igt@gem_exec_suspend@basic-s3 > > Kernel option scsi_mod.use_blk_mq=0 hides the issue on testhosts. > Configuration option was copied over on testhosts and 20170712 was re- > tested, that's why today looks so much greener. > > More information including traces and reproduction instructions at > https://bugzilla.kernel.org/show_bug.cgi?id=196223 > > I can run patchsets through the farm, if needed. In addition, daily > linux-next tags are automatically tested and results published. Christoph, any ideas? Smells like something in SCSI, my notebook with nvme/blk-mq suspend/resumes just fine. -- Jens Axboe